Results 41 to 50 of about 331,613 (346)

Modeling of a Double Gas Hydrate Particle Ignition

Applied Sciences, 2022
This paper presents the numerical research findings for the conditions and characteristics of methane-propane hydrate particle ignition. The curves of the ignition delay times of a hydrate particle versus its size and ambient temperature were obtained ...
Olga Gaidukova, Sergey Misyura, Dmitrii Razumov, Pavel Strizhak   +3 more
doaj   +1 more source

Evaluation of ignition mechanisms in selected nonmetallic materials [PDF]

, 1968
Test program evaluates thermal and electric ignition mechanisms in selected nonmetallic materials found in spacecraft with concentrated oxygen atmospheres.
Gerstein, M., Mc Lain, M., Ross, W.
core   +1 more source

Derivation and characterization of retinal pigment epithelium from urine‐derived iPSCs

FEBS Open Bio, EarlyView.
Age‐related macular degeneration causes vision loss via RPE dysfunction and loss. Traditional iPSC therapies rely on invasive biopsies, limiting scalability. Here, we utilize urine‐derived stem cells as an accessible source to generate u‐iPSCs, successfully differentiated into pigmented RPE. This “Urine‐to‐Retina” platform provides a promising path for
Daniella Beiner, Hainan Zhu, Carol Christine Bosholm, Heuy‐Ching Wang, Tracy Criswell, Anthony Atala, Jian‐Xing Ma, Yuanyuan Zhang   +7 more
wiley   +1 more source

Multi-messenger dynamic imaging of laser-driven shocks in water using a plasma wakefield accelerator

Nature Communications
Understanding dense matter hydrodynamics is critical for predicting plasma behavior in environments relevant to laser-driven inertial confinement fusion.
Mario D. Balcazar, Hai-En Tsai, Tobias M. Ostermayr, Paul Campbell, Matthew R. Trantham, Félicie Albert, Qiang Chen, Cary Colgan, Gilliss M. Dyer, Zachary Eisentraut, Eric Esarey, Elizabeth S. Grace, Benjamin Greenwood, Anthony J. Gonsalves, Sahel Hakimi, Robert Jacob, Brendan Kettle, Paul King, Karl Krushelnick, Nuno Lemos, Eva E. Los, Yong Ma, Stuart P. D. Mangles, John Nees, Isabella M. Pagano, Carl B. Schroeder, Raspberry A. Simpson, Anthony V. Vazquez, Jeroen van Tilborg, Cameron G. R. Geddes, Alexander G. R. Thomas, Carolyn C. Kuranz   +31 more
doaj   +1 more source

Combustion and Thermal Behavior of Selected Metallic Fuels Used in Pyrotechnic Compositions

Energies
Metal powders have both a high specific energy and a high energy density, which explains their widespread use in energetic materials (propellants, explosives and pyrotechnics).
Davney Ondzié Pandzou, Nabil Mokrani, Stéphane Bernard, Léo Courty   +3 more
doaj   +1 more source

Quantifying Litter Bed Ignitability: Comparison of a Laboratory and Field Method

Fire, 2023
Understanding the conditions when litter beds will ignite from firebrands is critical for predicting spot fire occurrence. Such research is either field- or laboratory-based, with limited analysis to compare the approaches.
Jamie E. Burton, Alexander I. Filkov, Bianca J. Pickering, Trent D. Penman, Jane G. Cawson   +4 more
doaj   +1 more source

Autoignition in nonpremixed flow [PDF]

, 1993
The objective of this investigation has been to improve understanding of autoignition processes in nonpremixed flow fields of the types encountered in Diesel-engine ignition, through theoretical analyses that employ asymptotic methods of applied ...
Liñán Martínez, Amable, Williams, F.A.   +1 more
core   +1 more source

Uncertainties and robustness of the ignition process in type Ia supernovae

, 2010
It is widely accepted that the onset of the explosive carbon burning in the core of a CO WD triggers the ignition of a SN Ia. The features of the ignition are among the few free parameters of the SN Ia explosion theory.
Cooper, Cussons, Dursi, Fryxell, García-Senz, García-Senz, Gasques, Hillebrandt, Hillebrandt, Höflich, Iapichino, Itoh, Jiang, Kasen, Kasen, Kuhlen, L. Iapichino, Lesaffre, Lesaffre, Lesaffre, Livne, Mazzali, Nomoto, P. Lesaffre, Piro, Piro, Röpke, Röpke, Röpke, Röpke, Röpke, Röpke, Schmidt, Spillane, Timmes, Timmes, Townsley, Umeda, Woosley, Woosley, Wunsch, Zingale, Zingale, Zingale   +43 more
core   +2 more sources

Reduction of Oxide Inclusions During the High‐Frequency Welding of Steel via a Nonthermal Ar/H2 Plasma Jet

Advanced Engineering Materials, EarlyView.
High‐frequency (HF) welding of steel is limited by oxide inclusions that degrade weld quality. This study demonstrates, for the first time, the integration of a nonthermal Ar/H2 dielectric barrier discharge (DBD) plasma jet into HF welding. Local plasma treatment provides effective shielding and in‐situ oxide reduction, resulting in markedly fewer and ...
Viktor Udachin, Lienhard Wegewitz, René Gustus, Henning Wiche, Wolfgang Maus‐Friedrichs   +4 more
wiley   +1 more source

A Case Study on Current Developments and Future Direction of Hypergolic Propellant Systems

Aerospace
Hypergolic propellants are easy to start and restart, stay liquid at normal temperatures, and avoid storage issues, making them ideal for spacecraft propulsion systems.
Nadir Yilmaz, Michael Arowolo, Alpaslan Atmanli   +2 more
doaj   +1 more source